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Finding the Fourth Proportional to 238,707.68, 358,034.72 and 61,218.84

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Solution

The fourth proportional to 238,707.68, 358,034.72 and 61,218.84 is: 91,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,707.68 : 358,034.72 = 61,218.84 : x
  2. Step 2: Convert to fraction form
    238,707.68/358,034.72 = 61,218.84/x
  3. Step 3: Cross multiply
    238,707.68x = 358,034.72 × 61,218.84
  4. Step 4: Simplify right side
    238,707.68x = 21,918,470,238.12
  5. Step 5: Solve for x
    x = 21,918,470,238.12/238,707.68
  6. Step 6: Final answer
    x = 91,821.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.